arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
Extension
.dtsi
Size
25079 bytes
Lines
1162
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright 2016 MediaTek Inc.
 */

#include <dt-bindings/input/input.h>
#include <dt-bindings/input/linux-event-codes.h>
#include <dt-bindings/regulator/dlg,da9211-regulator.h>
#include <dt-bindings/gpio/gpio.h>
#include "mt8173.dtsi"

/ {
	aliases {
		mmc0 = &mmc0;
		mmc1 = &mmc1;
		mmc2 = &mmc3;
	};

	memory@40000000 {
		device_type = "memory";
		reg = <0 0x40000000 0 0x80000000>;
	};

	backlight: backlight {
		compatible = "pwm-backlight";
		pwms = <&pwm0 0 1000000>;
		power-supply = <&bl_fixed_reg>;
		enable-gpios = <&pio 95 GPIO_ACTIVE_HIGH>;

		pinctrl-names = "default";
		pinctrl-0 = <&panel_backlight_en_pins>;
		status = "okay";
	};

	bl_fixed_reg: fixedregulator2 {
		compatible = "regulator-fixed";
		regulator-name = "bl_fixed";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		startup-delay-us = <1000>;
		enable-active-high;
		gpio = <&pio 32 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&bl_fixed_pins>;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	gpio_keys: gpio-keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&gpio_keys_pins>;

		switch-lid {
			label = "Lid";
			gpios = <&pio 69 GPIO_ACTIVE_LOW>;
			linux,code = <SW_LID>;
			linux,input-type = <EV_SW>;
			wakeup-source;
		};

		switch-power {
			label = "Power";
			gpios = <&pio 14 GPIO_ACTIVE_HIGH>;
			linux,code = <KEY_POWER>;
			debounce-interval = <30>;
			wakeup-source;
		};

Annotation

Implementation Notes